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refactor(#2390): split provision out of the create node in the spawn dag

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damocles 2026-07-13 16:04:08 +02:00 • committed by mara
commit 436adf6fd0
6 changed files with 79 additions and 35 deletions
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22
hive-c0re/src/job_queue/model.rs
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@ -75,9 +75,14 @@ pub enum NodeKind {
/// rebuild is the reconcile verb — and carries the post-rebuild
/// bookkeeping tail (rev marker, forge/matrix sync, kick, rescan).
Swap,
/// First-spawn `nixos-container create` plus the pre-create
/// provisioning (proposed/applied repos, state subvolume, meta
/// registration).
/// First-spawn pre-create provisioning: proposed/applied repos,
/// state subvolume, and meta registration (`sync_agents`). Runs
/// ahead of `Create` so the `nixos-container create --flake
/// meta#<name>` ref resolves. Store/meta-only — no container yet —
/// so it's lease- and build-slot-exempt like `Prebuild`.
Provision,
/// First-spawn `nixos-container create` proper. Assumes the
/// upstream `Provision` node already registered the agent in meta.
Create,
/// Meta flake lock bump. `sweep = false`: `meta::lock_update`
/// (commit fused, under `META_LOCK`) with the DAG's `inputs`;
@ -139,6 +144,7 @@ impl NodeKind {
match self {
NodeKind::Prebuild { .. } => "prebuild",
NodeKind::Swap => "swap",
NodeKind::Provision => "provision",
NodeKind::Create => "create",
NodeKind::MetaLock { .. } => "meta_lock",
NodeKind::Reconcile => "reconcile",
@ -169,10 +175,12 @@ impl NodeKind {
/// Container-affecting kinds require the DAG to hold the agent's
/// lifecycle lease (acquired at the first such node, held until the
/// DAG is terminal). Lease-exempt kinds (`Prebuild`, `MetaLock`,
/// `WritePermFile`) touch the store / meta repo, not the running
/// container — which is exactly why a `Prebuild` can overlap
/// another DAG's work on the same agent.
/// DAG is terminal). Lease-exempt kinds (`Prebuild`, `Provision`,
/// `MetaLock`, `WritePermFile`) touch the store / meta repo, not the
/// running container — which is exactly why a `Prebuild` can overlap
/// another DAG's work on the same agent. `Provision` precedes the
/// container's existence entirely, so the lease is first taken at the
/// `Create` node it feeds.
pub fn needs_lease(&self) -> bool {
matches!(
self,